Hey from Montreal,I recommend Earth X Lithium best battery I have used ,more cranking power ,weight reduction of 75% ,1/3 the size of OEM , You can leave on bike with out charging or trickle for 6 months no problem .Had one on my past BMW K1200R for 7 years to date (OEM would last me only 3 years ma...

Great pipe! have run same one all last summer on my 2017 GT
have you tried removing Baffle ?you will notice Allen bolt is tacked welded and in a really tight access spot ,wondering if anyone has an easy removal secret?